UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000059016 |
|---|---|
| Receipt number | R000067494 |
| Scientific Title | Ophthalmologist`s Perspectives on Cataract Surgery for Patients with Low Vision |
| Date of disclosure of the study information | 2025/09/06 |
| Last modified on | 2025/09/06 10:08:53 |
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Basic information
Public title
Ophthalmologist`s Perspectives on Cataract Surgery for Patients with Low Vision
Acronym
Ophthalmologist`s Perspectives on Cataract Surgery for Patients with Low Vision
Scientific Title
Ophthalmologist`s Perspectives on Cataract Surgery for Patients with Low Vision
Scientific Title:Acronym
Ophthalmologist`s Perspectives on Cataract Surgery for Patients with Low Vision
Region
| Japan |
Condition
Condition
Patients with irreversible visual impairment
Classification by specialty
| Ophthalmology |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
In Japan, the leading causes of visual disability among holders of the official vision impairment certificate are glaucoma, retinitis pigmentosa, diabetic retinopathy, and age-related macular degeneration, all of which may result in progressive visual deterioration (low vision). The number of individuals with visual impairment is increasing, and this trend is expected to continue with the aging of the population.
Cataract surgery is performed more than 1.6 million times annually in Japan and has been reported to be a highly cost-effective procedure. Previous studies have also demonstrated that cataract surgery improves patient`s cognitive function, depressive symptoms, and vision-related quality of life. These reports further showed a significant correlation between postoperative visual acuity and patient satisfaction. However, no studies have specifically focused on patients whose postoperative visual improvement remains limited, and no consensus has been established regarding surgical indications in such cases.
Basic objectives2
Others
Basic objectives -Others
We conducted a survey of ophthalmologist`s attitudes toward patients with low vision, with the aim of providing insights that may help guide refractive choices in future surgeries.
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
Survey of Intraocular Lens Power Choice and Justification in Daily Practice Cases Such as Central Scotoma, Paracentral Scotoma, and High Myopia
Key secondary outcomes
Base
Study type
Others,meta-analysis etc
Study design
Basic design
Randomization
Randomization unit
Blinding
Control
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment
Intervention
No. of arms
Purpose of intervention
Type of intervention
Interventions/Control_1
Interventions/Control_2
Interventions/Control_3
Interventions/Control_4
Interventions/Control_5
Interventions/Control_6
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10
Eligibility
Age-lower limit
| 26 | years-old | <= |
Age-upper limit
| Not applicable |
Gender
Male and Female
Key inclusion criteria
Ophthalmologists nationwide who provide consent to participate in this study
Key exclusion criteria
Ophthalmologists who do not provide consent
Target sample size
50
Research contact person
Name of lead principal investigator
| 1st name | Akitaka |
| Middle name | |
| Last name | Tsujikawa |
Organization
Kyoto University
Division name
Department of ophthalmology and visual science
Zip code
606-8507
Address
54 Shogoin Kawaramachi, Sakyo-ku, Kyoto, Japan
TEL
0757513727
tomoaki1031@kuhp.kyoto-u.ac.jp
Public contact
Name of contact person
| 1st name | Ayako |
| Middle name | |
| Last name | Takahashi |
Organization
Kyoto University
Division name
Department of ophthalmology and visual science
Zip code
606-8507
Address
54 Shogoin Kawaramachi, Sakyo-ku, Kyoto, Japan
TEL
0757513727
Homepage URL
atakahas@kuhp.kyoto-u.ac.jp
Sponsor or person
Institute
Kyoto University
Institute
Department
Personal name
Funding Source
Organization
Kyoto University
Organization
Division
Category of Funding Organization
Other
Nationality of Funding Organization
Other related organizations
Co-sponsor
Name of secondary funder(s)
IRB Contact (For public release)
Organization
Kyoto University Graduate School and Faculty of Medicine Ethics Committee
Address
53 Shogoin-kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
Tel
075-366-7618
ethcom@kuhp.kyoto-u.ac.jp
Secondary IDs
Secondary IDs
NO
Study ID_1
Org. issuing International ID_1
Study ID_2
Org. issuing International ID_2
IND to MHLW
Institutions
Institutions
Other administrative information
Date of disclosure of the study information
| 2025 | Year | 09 | Month | 06 | Day |
Related information
URL releasing protocol
Publication of results
Unpublished
Result
URL related to results and publications
Number of participants that the trial has enrolled
Results
Results date posted
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Participant flow
Adverse events
Outcome measures
Plan to share IPD
IPD sharing Plan description
Progress
Recruitment status
Preinitiation
Date of protocol fixation
| 2025 | Year | 08 | Month | 01 | Day |
Date of IRB
Anticipated trial start date
| 2025 | Year | 08 | Month | 01 | Day |
Last follow-up date
| 2030 | Year | 08 | Month | 01 | Day |
Date of closure to data entry
Date trial data considered complete
Date analysis concluded
Other
Other related information
nothing
Management information
Registered date
| 2025 | Year | 09 | Month | 06 | Day |
Last modified on
| 2025 | Year | 09 | Month | 06 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067494
